Varistors | Metal Oxide Varistors | MOV | RS
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    Varistors

    Varistors are devices that provide excellent transient voltage suppression and are a type of non-linear device that feature similar characteristics to Zener diodes. They are used to protect vulnerable electronic circuits and components from overvoltage conditions that can cause damage. Any potentially destructive overvoltage energy is dissipated as heat.

    Types of Varistor

    Metal oxide varistors

    Metal Oxide Varistors (MOVs) are typically constructed from zinc oxide and combined with small additions of other metal oxides such as cobalt, manganese or bismuth. These materials are sintered into ceramic casings during manufacture. Although MOVs are available in different formats, they are most commonly radial leaded discs.

    Applications:

    • Suppression of lightning and other high levels of transient energy
    • Low voltage power supplies in DC circuits
    • Low voltage power supply in automotive applications
    • Protection from internal transients within capacitor discharges, relay switching and inductive load switching

    Ceramic transient voltage

    Ceramic transient voltage suppressors are a type of variable resistor that are designed to respond to momentary conditions of overvoltage. They are more effective than other types of overvoltage protection components, such as varistors or gas discharge tubes, as they respond faster to the changing conditions. This particular type of transient voltage suppressor is made from ceramic.

    Applications:

    Ceramic transient voltage suppressors are used as part of electronic circuits to protect data or transmission lines. They work to protect against both unidirectional and bidirectional electrostatic discharge. This kind of sudden voltage spike can be caused either internally or externally, for example in the form of lightning or motor arcing.

    2266 Products showing for Varistors

    Littelfuse
    429V
    250V
    330V
    650V
    50A
    72J
    Metal
    LA
    17mm
    4500A
    500pF
    36mm
    -
    5.6mm
    17 (Dia.) x 5.6mm
    -
    Panasonic
    200V
    130V
    170V
    340V
    25A
    26J
    ZNR
    V
    9mm
    2500A
    360pF
    32.5mm
    -
    5.3mm
    9 x 5.3mm
    -
    KYOCERA AVX
    8.5V
    4V
    5.6V
    18V
    1A
    0.05J
    Ceramic
    VC
    -
    20A
    175pF
    1mm
    0.5mm
    -
    1 x 0.5 x 0.6mm
    0402 (1005M)
    Panasonic
    1000V
    625V
    825V
    1650V
    50A
    280J
    ZNR
    V
    16mm
    5000A
    230pF
    38.5mm
    -
    9.1mm
    16 (Dia.) x 9.1mm
    -
    Bourns
    360V
    230V
    230V
    595V
    5A
    10J
    Metal
    DV
    -
    400A
    110pF
    8mm
    -
    2mm
    -
    3225
    EPCOS
    470V
    300V
    385V
    775V
    100A
    173J
    Metal
    Standard
    21.5mm
    8000A
    780pF
    -
    -
    5.6mm
    21.5 (Dia.) x 5.6mm
    -
    EPCOS
    33V
    20V
    26V
    65V
    10A
    6J
    Metal
    Standard
    15.5mm
    1000A
    6.8nF
    -
    -
    4.6mm
    15.5 (Dia.) x 4.6mm
    -
    Littelfuse
    36.5V
    20V
    26V
    65V
    10A
    6J
    Metal
    ZA
    17mm
    1000A
    9.29nF
    40mm
    -
    5mm
    17 (Dia.) x 5mm
    -
    EPCOS
    510V
    320V
    420V
    840V
    100A
    184J
    Metal
    Standard
    21.5mm
    8000A
    540pF
    -
    -
    5.8mm
    21.5 (Dia.) x 5.8mm
    -
    Littelfuse
    275V
    150V
    200V
    430V
    10A
    13J
    Metal
    LA
    7mm
    1200A
    150pF
    32mm
    -
    12mm
    9 (Dia.) x 12mm
    -
    Littelfuse
    389 → 453V
    275V
    369V
    680V
    100A
    140J
    Metal
    LA
    23mm
    6500A
    900pF
    32mm
    -
    5.6mm
    23 (Dia.) x 5.6mm
    -
    EPCOS
    430V
    275V
    350V
    710V
    50A
    71J
    Metal
    Standard
    15.5mm
    4500A
    440pF
    -
    -
    5mm
    15.5 (Dia.) x 5mm
    -
    Wurth Elektronik
    510V
    320V
    418V
    842V
    100A
    382J
    Metal
    WE-VD
    23mm
    10000A
    760pF
    -
    -
    -
    -
    -
    EPCOS
    620V
    385V
    505V
    1025V
    300A
    800J
    Metal
    HighE
    40mm
    40000A
    1.9nF
    60mm
    14mm
    14mm
    40 (Dia.) x 14mm
    -
    Littelfuse
    162 → 198V
    115V
    153V
    300V
    50A
    35J
    Metal
    ZA
    17mm
    4500A
    1.19nF
    36mm
    -
    5mm
    17 (Dia.) x 5mm
    -
    EPCOS
    56V
    35V
    45V
    110V
    1A
    1.1J
    Metal
    Standard
    7mm
    100A
    620pF
    -
    -
    3.7mm
    7 (Dia.) x 3.7mm
    -
    EPCOS
    470V
    300V
    385V
    775V
    100A
    250J
    Metal
    Advanced
    20mm
    10000A
    780pF
    21.5mm
    25.5mm
    6.1mm
    21.5 x 6.1 x 25.5mm
    -
    Bourns
    400V
    300V
    385V
    775V
    5A
    15J
    Plastic
    PV
    -
    400A
    70pF
    8mm
    -
    3.4mm
    -
    3225
    Vishay
    430V
    275V
    350V
    710V
    10A
    36J
    -
    VDRS - E
    9mm
    1200A
    140pF
    -
    -
    4.9mm
    9 (Dia.) x 4.9mm
    -
    Vishay
    430V
    275V
    350V
    710V
    25A
    63J
    Metal
    NTCLE100E3
    13.5mm
    2500A
    270pF
    32mm
    -
    5.4mm
    13.5 (Dia.) x 5.4mm
    -
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